Enphase IQ9N 3-Phase Commercial Microinverter | DOM 277/480V

The Enphase IQ9N 3-Phase Microinverter (SKU: IQ9N-3P-277-A-DOM-US) is powered by advanced GaN-based architecture and the trusted Enphase platform. It delivers high performance for 480 VAC WYE three-phase commercial PV systems without the need for external transformers. This is the Domestic Content (DOM) version, made in the USA.Key Features Peak AC output power: 427 VA Supports 277 V (L-N) / 480 V (L-L) three-phase grids GaN-based architecture for high efficiency Supports high-wattage modules up to 600 W (340–600 W range) Domestic Content — Made in the USA (qualifies for ITC adder) No external transformer required for 480 VAC systems Built-in rapid shutdown (NEC 2014/2017/2020/2023 compliant) Phase balancing, voltage/frequency ride-through Loss-of-phase detection Remote diagnostics via Enphase Installer Portal and App Power line communication (PLC) Industry-leading 25-year limited warranty Electrical Specifications Peak Output Power: 427 VA Max Continuous Output Power: 427 VA Nominal Grid Voltage: 277 V (L-N) / 480 V (L-L) Grid Voltage Range: 243–305 V (L-N) Max Continuous Output Current: 1.54 A Nominal Frequency: 60 Hz CEC Weighted Efficiency: 97.5% Operating Voltage: 16–60 V DC Peak Power Tracking Voltage: 28–45 V DC Max DC Continuous Current: 16 A Max DC Short-Circuit Current: 25 A Max Microinverters per 20A 480V WYE Branch Circuit: 30 AC Connector: Enphase QD 4-pin connector DC Connector: MC4 Mechanical Specifications Dimensions (H×W×D): 206.48 mm × 186.03 mm × 31.25 mm Weight: 1.2 kg (2.65 lb) Ambient Temperature Range: -40°C to 65°C Enclosure: NEMA Type 6, outdoor rated, Class II double-insulated Cooling: Natural convection — no fans ComplianceCA Rule 21 (UL 1741-SB), UL 62109-1, UL 1741/IEEE 1547, FCC Part 15 Class B, ICES-003 Class B, NEC 2014/2017/2020/2023 Rapid ShutdownCompatibility PV Modules: 340–600 W IQ Gateway Commercial Pro (GW0-1CL-1N-D0-0R) IQ Gateway Commercial 2 (ENV2-IQC2-AM3-3P) Enphase QD Cables Warranty25-year limited warrantyDatasheetDownload IQ9N Commercial Microinverter Datasheet (PDF)